0.9 v ~ 5 v 600ma caricabatterie usb output mini dc-dc boost converter + Tp4056 1a lipo batteria al litio caricabatterie modulo di diy mini Usb this module is used for lithium to lithium cell or multi section in parallel, the doors of recharge can take power from the usb.instructions and precautionstest current meter in series with the sheet of office only 5 v input. current office is better capacity of the battery 0.37c, 0.37 times the capacity, for example, 1000 mah battery current office 400 that is enough. the effect of excessive speed of charging back, rushed over tension of the battery on a lot.not too small and too long charging cable connection. these large connection resistance. too thin, then hurried over voltage of the battery on a lot. connected to the battery, the best go...

Notice: The new tracking number for Yanwen Economic Air Mail can be traced only befor it arrive the airport of your country,please choose Special Line-YW/China Post Air Mail or AliExpress Standard Shipping.if you want a full tracking info.The same product will arrive in 15 to 60 days.Tracking info of Yanwen Economic Air Mail can be check here: www.17track.net/enName: IIC I2C level konvertierungsmodul 5 - 3 v system compatibleplease note that don't use to win 8 / win10model: icc i2cpower supply: 5 v to 3 vconverter from an extra link to 5 v system powerascl connect to 5 v system sclasda connect to 5 v system, sdaagnd join & w; s to 5 v system gndbvcc connect to 3 v power systembscl connect to 3 v system sclbsda connect to ...

describe：100% brand new and high qualityThe GPRS Shield is based on SIM900 module from SIMCOM and compatible with Arduino and its clones. The GPRS Shield provides you a way to communicate using the GSM cell phone network. The shield allows you to achieve SMS, MMS, GPRS and Audio via UART by sending AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module(They are all 2V8 logic) present onboard. Features:Quad-Band 850 / 900/ 1800 / 1900 MHz - would work on GSM networks in all countries across the world.GPRS multi-slot class 10/8GPRS mobile station class BCompliant to GSM phase 2/2+Class 4 (2 W @ 850 / 900 MHz)Class 1 (1 W @ 1800 / 1900MHz)Control via AT commands - Standard Commands: GSM 07.07 & 07.05 | ...

DescriptionRa-02 is a wireless transmission module based on SEMTECH's SX1278 wireless transceiver. It adopts advanced LoRa spread spectrum technology, with a communication distance of 10,000 meters. It has strong ability of anti-jamming and has the function of air wake-up Consumption. Can be covering thousands of people in the district environment, particularly suitable for meter reading, smart home, burglar alarm equipment.The LoRa series module Ra-01 is designed and developed by AI-THINKER Technology. The SX1278 RF module is mainly used for long-range spread spectrum communication. It can resist Minimize current consumption. Thanks to SEMTECH's patented LoRa ™ modulation technology, the SX1278 has a high sensitivity of -148 dBm with a power output of +20 dBm, a long transmission distance...